Answer / suresh kumar

sir, iam suresh and i had completed my diploma in chemical
engineering in 2006. i want to write hpcl exam, please send
me previous papers.

Answer / ranjana chavan

please email me hpcl &gail question papers if availble as a
part of your contribution in my career
email @ chavanranjana@rediffmail.com

Answer / kingsly

CAn someone pls mail me a copy of hpcl question paper too..aptitude and technical..im in civil eng..it'e urgent..plsss

kingslyjayanthan@gmail.com

A DP transmitter is used to measure the level of an open tank. The drain line of the tank is connected to a control valve, and is configured as, if the level of the tank is 90% the valve should get open 10%. And if the tank level is 10%, the valve should get open 90%. Draw wiring diagram and explain how to configure DP transmitter and control valve using HART communicator. If the span error at output is 1%, what will be the %opening of the control valve at 60% level of the tank?

0 Answers  

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Gas equation

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